Ok i have a 1995 v6 4.3 chevy 4x4 blazer its getting fuel has spark and good compression it will turn over all day with out a problem but will not start

I've got a1995 4x4 Chevy blazer it's a v6 4.3 vortex with throttle body it will turn over all-day long without a problem but it will not start it's getting fuel fire and air it's got new spark plugs and wires whole new fuel system and new air filter no leaks any were I'm not sure what else to look at its not the pic up pack it was just changed two days ago it's got a new battery I've had it tasted several times to make sure can anyone recommend anything else I could check that I might have looked over I've checked everything that I now to check that has to do with it starting and mabey this Will help it was running like a top and all of the sudden while sitting in my driveway it started idling real rough and died after about two minutes of it doing that and if you tried to give it some fuel it would do like its not getting enough fuel and would almost die out but wouldn't but once it died I thought it was out of gas so I put some more and it started right up and was fine until the next day when I went to leave in it it started right up with no problem I went to take off and it would barely go and done the same thing as the day before but this time it would not start after it died

1 Answer

Was the TBI base gasket checked? If there is a big vacuum leak it will not start. Also have you checked the fuel pressure? I know you have a new fuel pump but I'm thinking the fuel regulator in the TBI may be weak. Fuel pressure should be 9 to 13 lbs. If it starts with the fuel pressure gauge hooked in line rev up the engine and watch the fuel pressure. It should hold within range.

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